Le 13/03/2024 à 04:34, Pasha Tatashin a écrit : > CONFIG_DEBUG_STACK_USAGE provides a mechanism to know the minimum amount > of memory that was left in stack. Every time the new anti-record is > reached a message is printed to the console. > > However, this is not useful to know how much each page within stack was > actually used. Provide a mechanism to count the number of time each > stack page was reached throughout the live of the stack: by "this is not useful to know ", you mean "this does not allow us to know" ? > > $ grep kstack /proc/vmstat > kstack_page_1 19974 > kstack_page_2 94 > kstack_page_3 0 > kstack_page_4 0 That's probably only usefull when THREAD_SIZE is larger than PAGE_SIZE. On powerpc 8xx, THREAD_SIZE is 8k by default and PAGE_SIZE can be either 4k or 16k. Christophe
